Phase diagram construction
Phase diagram of octane/n -propanol/water ternary system was
constructed at room temperature by titration and the detailed steps were
as follows. At first, a mixture with the desired mass ratio of octane to
water (RO/W) was prepared in a dry beaker. Then,n -propanol was slowly dropped to it until the ternary mixture
changed from turbidity to transparency under magnetic stirring.
Repetition of the above steps for different RO/W values
allowed the construction of the phase diagram, in which the component
content is the average value obtained by repeating all processes at
least three times.